.1 Have all cargo lines been stripped and drained
on completion of cargo discharge?
.2 Have slop tanks and all cargo tank valves been
closed?
.3 Have the appropriate pumps and piping been
flushed into the port slop tank?
.4 Have No. 2 and No 4 centre tanks been ballasted
on completion of flushing?
.5 Have the ballast tanks been checked for hydrocarbon
content prior to ballasting?
.6 Have all the valves on the dedicated clean
ballast system been closed?